Intangible Assets, Net (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Amortization expense disclosure
Amortization expense	$ 30	$ 72	$ 130
Finite-Lived and Indefinite Lived Intangible Assets
Accumulated amortization, definite-lived intangible assets	(339)	(359)
Net carrying amount, definite-lived intangible assets	68	88
Gross carrying amount, intangible assets excluding goodwill	840	880
Net carrying amount, intangible assets	501	521
Definite-lived intangible assets, future amortization expense disclosure
2013	24
2014	20
2015	10
2016	6
2017	4
Thereafter	4
Total	68
License agreements and other
Finite-Lived and Indefinite Lived Intangible Assets
Estimated useful life, minimum (in years)	3	3
Estimated useful life, maximum (in years)	10	10
Gross carrying amount, definite-lived intangible assets	98	88
Accumulated amortization, definite-lived intangible assets	(88)	(82)
Impairment of goodwill/intangible assets			(67)
Net carrying amount, definite-lived intangible assets	10	6
Game engines
Finite-Lived and Indefinite Lived Intangible Assets
Estimated useful life, minimum (in years)		2
Estimated useful life, maximum (in years)		5
Gross carrying amount, definite-lived intangible assets		32
Accumulated amortization, definite-lived intangible assets		(32)
Impairment of goodwill/intangible assets			(9)
Net carrying amount, definite-lived intangible assets		0
Internally developed franchises
Finite-Lived and Indefinite Lived Intangible Assets
Estimated useful life, minimum (in years)	11	11
Estimated useful life, maximum (in years)	12	12
Gross carrying amount, definite-lived intangible assets	309	309
Accumulated amortization, definite-lived intangible assets	(251)	(227)
Impairment of goodwill/intangible assets			(250)
Net carrying amount, definite-lived intangible assets	58	82
Distribution agreements
Finite-Lived and Indefinite Lived Intangible Assets
Estimated useful life, minimum (in years)		4
Estimated useful life, maximum (in years)		4
Gross carrying amount, definite-lived intangible assets		18
Accumulated amortization, definite-lived intangible assets		(18)
Net carrying amount, definite-lived intangible assets		0
Activision trademark
Indefinite Lived Intangible Assets
Gross carrying amount, indefinite-lived intangible assets	386	386
Net carrying amount, indefinite-lived intangible assets	386	386
Acquired trade names
Indefinite Lived Intangible Assets
Gross carrying amount, indefinite-lived intangible assets	47	47
Net carrying amount, indefinite-lived intangible assets	$ 47	$ 47